How to build *only* the built in applications and create system image

[Riyaz]

I want to modify Alarm Clock application and test the same in
emulator.

When i use *make* it's building everything.

how do i build only the Alarm Clock application or at lease built in
application and create system image without rebuilding all

[Dianne Hackborn]

You can't really, you need to build everything once.  After you build everything once, later runs of make will only rebuild things that have changed.

--
Dianne Hackborn
Android framework engineer
hac...@android.com

Note: please don't send private questions to me, as I don't have time to provide private support, and so won't reply to such e-mails.  All such questions should be posted on public forums, where I and others can see and answer them.

[Geesun]

I think we can build the alarm clock separate.
first, go to the root dir for the source. run

. build/envsetup.sh

then we can use

mmm packages/apps/AlarmClock/

after the build , we can upload the Alarmclock.apk to /system/app/